巻号一覧
2 巻, 10 号
選択された号の論文の8件中1～8を表示しています
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三浦 武雄1963 年 2 巻 10 号 p. 739-750
発行日: 1963/10/10
公開日: 2010/10/21
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黒川 一夫, 飯田 喜久雄, 小野 祐一1963 年 2 巻 10 号 p. 751-758
発行日: 1963/10/10
公開日: 2010/10/21
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温度の超精密制御・第1報杉浦 一郎, 丸橋 徹1963 年 2 巻 10 号 p. 759-769
発行日: 1963/10/10
公開日: 2010/10/21
ジャーナル フリーA millimicrovoltmeter was devised to control the temperature in the range from 600°C to 1000°C using a thermocouple with high accuracy of 1/1000°C. Main system of the voltmeter is composed of a galvanometer and an electric resistance bridge of photoconductive elements (CdS). A phase lead type local feedback circuit from the bridge to the galvanometer serves to stabilize the gain of the voltmeter, to increase the critical damping resistance and also to somewhat decrease the response speed so as to make it less difficult to control the drift of the voltmeter. The drift control is made in the following manner. The unbalance voltage of the CdS bridge rotates a two phase motor which in turn moves the contact brush of a variable resistance on one arm of a separate dc bridge. Then, the unbalance voltage thus generated is divided into small portions and fed to the galvanometer. Another phase lead type compensator is used in the drift control circuit for stabilization of the control. Measurements made by this voltmeter used as an ordinary one and the drift control actions come alternatively. Measurements are repeated 100 to 800 times for each of six measuring points in the electric voltage range 1.5×10-9V-3×10-8V for the purpose of confirming the capability of the millimicrovoltmeter. The achieved capability is as follows; voltage sensitivity 1×10-9V, drift less than 4×10-10V/h, noise 7×10-10V, measurable range 1×10-9V-2.7×10-6V, 90% response time 4-13 sec, gain higher than 90 db and external critical damping resistance 25Ω-15Ω.抄録全体を表示PDF形式でダウンロード (7052K) -
じょう乱が小さい場合の線形解析中川 東一郎1963 年 2 巻 10 号 p. 770-783
発行日: 1963/10/10
公開日: 2010/10/21
ジャーナル フリーAlthough process of the cement rotary kiln falls under the type of counter flow heat exchanger, it is very difficult to analyse the process because controlled material is a powder and, besides, the process is a series combination of the sintering, calcining and drying zones. The author tried to investigate the process by means of analog computer, taking into consideration the interactions, big time delay and partial non-linearity of the process. It is not necessary to consider the process in high frequency region because of its own big heat capacity. So, the process is simulated only in low frequency region. As a conclusion, it was proved that soft control is better than tight control against possible oscillation caused by time delay and non-linearity.抄録全体を表示PDF形式でダウンロード (1475K) -
植村 三良, 村本 昭一, 氷室 陽1963 年 2 巻 10 号 p. 784-791
発行日: 1963/10/10
公開日: 2010/10/21
ジャーナル フリーMethod for length measurement is the most fundamental one among all the physical measurements. Electronic method applied to this field, especially for length measurement in relation to machine tools, has been getting more important. Described in this paper is a length measuring apparatus using magnetic scale applying the magnetic recording technique. To use the magnetic remanence as a scale, signals of a certain wave-length are recorded and the magnetic remanence is made at regular intervals. Length is detected with this magnetic scale and changed into electric signal by flux response head of special structure. Its main features are as follows:
1) Values of length and angle, together with the moving direction, can easily be read electrically.
2) Reading is started independent of the speed of head and even rapid change in length can be continuously caught at high speed.
3) Adequate for digital indication and control. Interval of magnetic pattern by a sample apparatus was 200 te, but an accuracy less than 5μ was obtained by applying the interpolation method.抄録全体を表示PDF形式でダウンロード (3783K) -
示村 悦二郎1963 年 2 巻 10 号 p. 792-800
発行日: 1963/10/10
公開日: 2010/10/21
ジャーナル フリーIn a process control, major role of a controller is to suppres the effects of disturbances and to keep the controlled value constant. To have a good control condition, parameters of a controller should be adjusted to optimum condition. This optimum adjustment is an interesting problem, it is however more important to know how well the process is controlled by the optimaly adjusted controller. In this article, the author intends to have a quantitative representation of quality of control. Disturbances are assumed to belong to a stationary random process and to be characterised by a deviation σd2 and a half-power frequency ω0. To express controllability of a controller, the ratio of the deviation of the controlled value to the deviation of disturbance is defined as the statistical control coefficient. The minimum value of this statistical control coefficient in all adjustable parameters for the given random disturbance expresses the limit of control which can be realized by the controller. Minimum values of statistical control coefficient for P, PI, PD and PID controllers were numerically calculated. From this result, the controllability of various types of controllers were compared and PID controller was proved to give the best quality of control against random disturbances. If an allowable limit of a statistical control coefficient is presumably given, a practical limit of ω0 is found for the given process.抄録全体を表示PDF形式でダウンロード (1164K) -
渡辺 金之助1963 年 2 巻 10 号 p. 802-807
発行日: 1963/10/10
公開日: 2010/10/21
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中川 隆1963 年 2 巻 10 号 p. 808-814
発行日: 1963/10/10
公開日: 2010/10/21
ジャーナル フリーPDF形式でダウンロード (806K)
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